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Semicontinuous Electrokinetic Dewatering of Clay Suspensions

Thus, the separation result s showed that the change s of solids content achieved by the electrokinetic dewatering process was larger than the gravity only process but smaller tha n what is expected according to the constitu tive relationship. Supernatant w ater One of the purposes for develop ing the phosphat ic clay dewatering technique is to ...

ElectroKinetic Solutions Inc. (EKS) Announces New CEO ...

Proof-of-concept was achieved through more than three years of laboratory research. Scaled-up tests were performed at the C-FER facility in Edmonton, Alberta. ... EKS is a clean technology company that has developed the ElectroKinetic Solutions-Dewatering Technology (EKS-DT). This innovative technology is applicable to a wide range of ...

Dewatering of mine tailings using electrokinetic geosynthetics

Dewatering of mine tailings using electrokinetic geosynthetics A.B Fourie, D.G. Johns, and C.J.F.P. Jones Abstract: Many mining operations produce tailings that dewater very slowly under self-weight consolidation. One way of reducing the water content of such tailings is by electroosmotic dewatering.

Electrokinetic - Solving ground engineering and dewatering ...

New technology available from Electrokinetic Ltd is bringing substantial benefits to historically difficult ground engineering and dewatering problems. The patented technology, electrokinetic geosynthetics (EKG), has numerous applications across a range of industries including stabilisation of embankments and cuttings; dewatering of wastes such as sewage sludge and …

RESPONSE OF DIFFERENT TYPES OF BIOSOLIDS TO …

Salmonella spp. was achieved in the reactor with anaerobically digested sludge under a low ... biosolids using an electrokinetic dewatering system. The application of DC current to biosolids between a series of anodes and cathodes produces a number of electrokinetic phenomena (e.g.

Influence of High Voltage Gradients on Electrokinetic ...

During the process of electrokinetic dewatering using high voltage gradients of 0.5-1.25 V/cm, the current, temperature, drainage, evaporated water, …

Paper: Electrokinetic dewatering of mine tailings from ...

Shang, JQ 1997b, 'Electrokinetic dewatering of clay slurries as engineering soil covers', Canadian Geotechnical Journal, vol. 34, no. 1, pp. 78–86. Shang, JQ & Mohamedelhassan, E 2001, 'Electrokinetic dewatering of Eneabba West mine tailings: An experimental study.' Proceedings of the Soft Ground Technology Conference, no. 112, pp ...

Semi-Continuous Electrokinetic Dewatering of Phosphatic ...

A semi-continuous electrokinetic dewatering process, representing an intermediate step in development of a technology for continuous electrokinetic dewatering of phosphatic clay suspensions, was ...

Electrokinetic Dewatering of Sewage Sludge with Fixed and ...

Jan 01, 2016· This paper presents a laboratory study on electrokinetic dewatering (EKD) of sewage sludge with fixed and moving electrodes. The experiments with fixed electrodes were conducted in two purposely designed Perspex cylinders to investigate the mechanism of attenuation in electroosmotic flow and dewatering efficiency.

Effect of Different Patterns of Electrodes on ...

electrokinetic dewatering process based on the water content and shear strength changes occurring on for allowing free flow of water during the process. Filter paper the treatment. The electrodes used are carbon and a combination of coir geotextile with mild steel. III. ...

Dewatering and coliform inactivation in biosolids using ...

May 03, 2006· The feasibility of using electrokinetic processes for dewatering and fecal coliform (FC) inactivation was evaluated on a bench scale. Six electrokinetic cells were filled with biosolids from an attached growth biological wastewater treatment plant in Auteuil, Quebec. A conditioning liquid containing nitrate and ammonia was also added to two cells.

ENERGOS ELECTROKINETIC SLUDGE DEWATERING TEST - …

In 2010, ENERGOS conducted their first electrokinetic dewatering machine test in sewage water treatment plant in Chungchung-do in Korea.They can achieve more...

(71d) Efficient Continuous Electrokinetic Dewatering of ...

Two prototypes were developed for continuous electrokinetic dewatering of phosphatic clay suspensions. 2,3 A two-stage design comprised an electrophoretic thickening unit followed by a unit that used electro-osmosis to complete the dewatering. A single-stage design carried out the dewatering in one operation.

Electrokinetic Dewatering of Ultrafine Coal and Coal Tailings

The four tests on Wambo tailings all started from different initial solids content values, ranging from 30 to 45%, and effective electrokinetic dewatering was achieved in all four cases. The tests in the EO cell confirmed the data obtained from the tub tests, with the Dawson tailings again performing poorly relative to the other five materials.

Electrophoretic dewatering of mine tailings using ...

The electrokinetic treatment of mine tailings demonstrated that dewatering of mine tailings using electrokinetic geosynthetic methods could be economic as well as effective Fourie et al ...

of Mineral Ultrafines Surfactant-Enhanced Electroosmotic ...

electrokinetic principles in conjunction with or as an alternative to hy- draulic methods is explored. The factor critically limiting conventional hydraulic dewatering methods is the solid particle size, which governs the filter cake pore size. When ultrafines are present, there is a considerable reduction in hydraulic perme-

Electrokinetic geosynthetic dewatering of nuclear ...

Aug 01, 2015· The method of application of electrokinetic dewatering depends upon the nature of the material to be treated, Table 1. Table 1 shows the potential electrokinetic treatment methods available using different EKG dewatering materials. The applicability of the different methods depends upon the volume and uniformity of the material to be treated and the rate of …

Dewatering and disinfection of aerobic and anaerobic ...

Ten bench-scale electrokinetic cells were set up for the disinfection of the following sludges: primary, secondary (attached growth culture and suspended culture), and anaerobically digested sludge. A conditioning liquid was also added to five cells. Blower system to aid in dewatering and drying was used in in four EK cells.

(PDF) Sludge dewatering by electrokinetic technique ...

Advances in Environmental Research 7 (2003) 727–732 Sludge dewatering by electrokinetic technique: effect of processing time and potential gradient Ching Yuana,*, Chih-huang Wengb a Department of Civil and Environmental Engineering, National University of Kaohsiung, No. 700, Kaohsiung University Road, Non-Tzu Dist., 811, Kaohsiung, Taiwan, ROC b Department of …

Electrokinetic Dewatering of Eneabba West Mine Tailings: A ...

Apr 26, 2012· It is concluded that the Eneabba West Mine tailings are feasible for electrokinetic dewatering. This is demonstrated by the electroosmotic permeability in the range of 3.2 to 4.7 x 10 –9 m 2 /sV; the electrokinetic consolidation ratio in the range of 0.1 to 20 m/V; and the coefficient of electrokinetic water transport in the range of 5.1 to 6 ...

Development of an electrokinetic method of dewatering and ...

Development of an electrokinetic method of dewatering and upgrading sludge to class A / excellent quality biosolids : comparison of aerobic and anaerobic municipal sludge . ... It was concluded that the anaerobic digested sludge had better inactivation of Salmonella spp. and achieved higher dewatering efficiency under lower voltage gradient ...

Dewatering and disinfection of aerobic and anaerobic ...

Sludge electro-conditioning is a pre-dewatering process that depends on different electrokinetic reactions and it is recommended to a sludge of less than 1.5% TS.

Electrokinetic geosynthetics - SlideShare

use of electrokinetic geosynthetics in slope stabilisation. ... can be achieved by combining the electro kinetic phenomena of electro-osmosis, electrophoresis and associated electro kinetic functions such as electrolysis with the traditional functions of geo synthetics of drainage, filtration, containment and reinforcement. ... Dewatering of ...

Development of an electrokinetic method of dewatering and ...

Biosolids are organic-rich residuals resulting from the wastewater treatment processes. Thousands of tons of biosolids are produced every year currently in Canada and the U.S., which should be treated and disposed of safely according to the strict environmental standards. This study aims to investigate different sludges and generate Class A biosolids due to …

US4755305A - Continuous dewatering method - Google Patents

An apparatus and method for dewatering sludges and the like as part of landfill operations by electrokinetic techniques including placing anode and cathode electrode modules in contact with the sludge and applying electrical energy to the electrodes to establish an electric field in the sludge. Charged particles within the sludge, including macro-molecules, colloids, and …

Treatment of sewage sludge using electrokinetic ...

Jan 31, 2007· Current dewatering methods are based on the use of mechanical pressure or centrifugation to cause the free water in the system to flow. This is performed by feeding a liquid sludge into a machine (centrifuge, belt press, etc.). This water can then be removed by mechanical means. More dewatering is achieved by exerting a greater and greater ...

FAQ – EKS - ElectroKinetic Solutions

Electrophoresis and electro-osmosis work together to accelerate dewatering. The EKS-DT process involves two stages. During Stage 1, slurries are dewatered to the point that a soil matrix is formed. Stage 2 involves further dewatering of the soil until a desired water content/strength is achieved. The physics of Stage 1 differ somewhat from ...

Electrokinetic Geosynthetic (EKG) Dewatering and Treatment ...

tailings and sewage sludge, occur in the mining and water industries. These are amenable to treatment (dewatering) using belt press systems but the level of dewatering may not be adequate. A step change in the level of dewatering can be achieved by the use of electrokinetic geosynthetic (EKG) belt filter presses.

ELECTROKINETIC DEWATERING OF SOIL USING MULTI …

electrokinetic system for dewatering for soil kept at its liquid limit. Based on the results from laboratory testing, it can be concluded that electrokinetic process decreased the water content to the tune of 70% and increase the shear strength of soil.

Electrokinetic - Case Studies

Electrokinetic case studies. EK system case studies include: EKG Slope stabilisation. ... Dewatering bags. Dewatering nuclear contaminated mineral slurry; ... A step change in belt press dewatering performance has been achieved by combining conventional belt press technology with EKG. This breakthrough adds the dewatering effect of ...